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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/5268

Title: Application of Covariance Analysis to Feed/Ration Experimental Data
Authors: Osei-Agyemang, K.
Keywords: Analysis of Covariance
Analysis of Variance
Regression and Correlation
F-statistic
Probability
Issue Date: Apr-2006
Publisher: Journal of Science and Technology
Citation: Journal of Science and Technology, Vol. 26 No. 1, 2006 pp 54-59
Abstract: The use Analysis of Covariance (ANOCOVA) to feed/ration experimental data for births was examined. Correlation and Regression analyses were used to adjust for the covariate - initial weight of the experimental birds. The Fisher's F statistic for the straight forward Analysis of Variance (ANOVA) showed significant differences among the rations. With the ANOVA, the calculated F statistic was 4.025, with a probability of 0.0149. On the other hand the F calculated using the ANOCOVA was 2.25 with a probability greater than 0.05. This was not significant (as f0.05=2.93). This means that by using ANOVA, the calculated F will be overestimated and a researcher may arrive at a false conclusion indicating that there were treatment differences when actually there may be none.
Description: Article published in the Journal of Science and Technology, Vol. 26 No. 1, 2006 pp 54-59
URI: http://hdl.handle.net/123456789/5268
ISSN: 08550395
Appears in Collections:Journal of Science and Technology 2000-

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